[PATCH v11 4/7] MIPS: Loongson64: dts: introduce ls2k1000 pai evaluation board

[Sui Jingfeng]

From: suijingfeng <suijingfeng at loongson.cn>

   ___________________                           ____________________
  |            -------|                         |                    |
  |  CRTC0 --> | DVO0 ------------------------> | 1024x600 DPI Panel |
  |  _   _     -------|  | Which panel to use   |____________________|
  | | | | |           |  | with this board is a  ___________________
  | |_| |_|           |  | choice of the user   |                   |
  |                   |  +--------------------> | 800x480 DPI Panel |
  |   DC In LS2K1000  |                         |___________________|
  |  _   _            |     +------+
  | | | | |           <---->| i2c1 |-----------+
  | |_| |_|           |     +------+           |
  |                   |        |               |               _________
  |            -------|    +---------+         |              |         |
  |  CRTC1 --> | DVO1 ---> | sii9022 | --> HDMI connector --> | Monitor |
  |            -------|    +---------+                        |_________|
  |___________________|

The sii9022 HDMI transmitter working in transparent mode, in this case
the edid is read from the monitor directly, not through sil9022's ddc
channel. The PMON[2] firmware of this board is responsible for configure
the sii9022 encoder at boot time. Due to i2c driver for lsk2000 SoC is
not upstream yet, we simply replace the sii9022 with a 1024x768 panel.

The i2c0 is not get used by lsdc driver for this board, so there no
need to worry about DVO0.

[1] https://wiki.debian.org/InstallingDebianOn/Lemote/Loongson2K1000
[2] https://github.com/loongson-community/pmon

Signed-off-by: suijingfeng <suijingfeng at loongson.cn>
Signed-off-by: Sui Jingfeng <15330273260 at 189.cn>
---
 arch/mips/boot/dts/loongson/ls2k1000_pai.dts | 102 +++++++++++++++++++
 1 file changed, 102 insertions(+)
 create mode 100644 arch/mips/boot/dts/loongson/ls2k1000_pai.dts

diff --git a/arch/mips/boot/dts/loongson/ls2k1000_pai.dts b/arch/mips/boot/dts/loongson/ls2k1000_pai.dts
new file mode 100644
index 000000000000..0b0172d90677
--- /dev/null
+++ b/arch/mips/boot/dts/loongson/ls2k1000_pai.dts
@@ -0,0 +1,102 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/dts-v1/;
+
+#include "loongson64-2k1000.dtsi"
+
+/ {
+	model = "LS2K1000_PAI_UDB_V1.5";
+
+	panel: display at 0 {
+		compatible = "hontron,070JII2135-A2", "panel-dpi";
+		label = "LCD070CG1024600+DC21";
+
+		rotation = <0>;
+		width-mm = <86>;
+		height-mm = <154>;
+
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		port at 0 {
+			reg = <0>;
+
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			panel_in: endpoint at 0 {
+				reg = <0>;
+				remote-endpoint = <&dc_out_rgb0>;
+			};
+		};
+
+		panel-timing {
+			clock-frequency = <51200000>;
+			hactive = <1024>;
+			vactive = <600>;
+			hsync-len = <4>;
+			hfront-porch = <160>;
+			hback-porch = <156>;
+			vfront-porch = <11>;
+			vback-porch = <23>;
+			vsync-len = <1>;
+
+			hsync-active = <0>;
+			vsync-active = <0>;
+			de-active = <1>;
+			pixelclk-active = <1>;
+		};
+	};
+
+	monitor: display at 1 {
+		compatible = "panel-dpi";
+
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		port at 0 {
+			reg = <0>;
+
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			monitor_in: endpoint at 0 {
+				reg = <0>;
+				remote-endpoint = <&dc_out_rgb1>;
+			};
+		};
+
+		panel-timing {
+			clock-frequency = <65000000>;
+			hactive = <1024>;
+			vactive = <768>;
+			hfront-porch = <24>;
+			hsync-len = <136>;
+			hback-porch = <160>;
+			vfront-porch = <3>;
+			vback-porch = <6>;
+			vsync-len = <29>;
+
+			hsync-active = <0>;
+			vsync-active = <0>;
+			de-active = <1>;
+			pixelclk-active = <1>;
+		};
+	};
+};
+
+&lsdc {
+	ports {
+		port at 0 {
+			endpoint {
+				remote-endpoint = <&panel_in>;
+			};
+		};
+
+		port at 1 {
+			endpoint {
+				remote-endpoint = <&monitor_in>;
+			};
+		};
+	};
+};
-- 
2.25.1